I have a 2000 jeep cherokee that has a key switch to unlock doors/hatch that doesnt work when weather is warm?

Question

I noticed this last year. early morning and late evening when its cooler outside it works no problem{during this winter no problems at all}afternoon into evening only driver door works.Now that weather is warming up its starting again

the locks dont work with the key switch or the manually switching lever on door,you cant even hear any movement in the door as you normally do. the only one that works is the driverside door.

Answer 1

The heat expands the metal so it gets enlarged, and sticks to the isnside part of the door. Try using your air conditioner a lot.

Answer 2

Sounds like the locking mechanism has given up on you. You have 3 options...
1.) Take apart the door and spray the rods for the lock with some lithium type of grease and try again, they may be just starting to rust a little bit causing some rough spots
2.) Replace the automatic door lock mechanism w/ one from a junk yard. May end up with the same problem very soon depending on where you are at.
3.) Check the voltage at the actuator and see if you are getting the proper voltage. If not it's time to find out why or install a relay that will solve the problem. There is a write up on Jeep Unlimited on how to do this.

Answer 3

Sounds like you need to have this fixed by a mechanic. Gotta love them Jeeps!!!!!!!!!!1